/*
 * Copyright 2024 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package androidx.compose.ui.test

import android.os.Looper
import androidx.compose.foundation.layout.Box
import androidx.compose.foundation.layout.size
import androidx.compose.foundation.lazy.LazyColumn
import androidx.compose.ui.Modifier
import androidx.compose.ui.test.junit4.createComposeRule
import androidx.compose.ui.unit.dp
import org.junit.Rule
import org.junit.Test
import org.junit.runner.RunWith
import org.robolectric.RobolectricTestRunner
import org.robolectric.Shadows.shadowOf
import org.robolectric.annotation.Config
import org.robolectric.annotation.GraphicsMode

@RunWith(RobolectricTestRunner::class)
@Config(sdk = [33])
@GraphicsMode(GraphicsMode.Mode.NATIVE)
class PrefetchNotHangingMainThreadTest {

    @get:Rule val composeRule = createComposeRule()

    @Test
    fun prefetchNotHangingMainThread() {
        composeRule.setContent { LazyColumn { items(100) { Box(Modifier.size(30.dp)) } } }

        composeRule.onNode(hasScrollToIndexAction()).performTouchInput { swipeUp() }

        shadowOf(Looper.getMainLooper()).idle()
    }
}
